Enter a URL, and this tool will test the loading time and performance for desktop and for mobile, plus identify opportunities to improve (and pat you on the back for what you’re doing well). The mobile results also come with a user experience score, grading areas like tap targets and font sizes.

The Wayback Machineis the most complete historical archive of the Internet. It allows you to see what a website used to look like. This is a great investigative tool if you notice some odd traffic changes after you’ve updated your website, and you don’t have a site back-up available.

Uses

This will show you a number of things going on behind-the-scenes with competitor websites. Server information, CMS systems, frameworks, analytics and tracking, javascript libraries, widgets, aggregation functionality, document information and encoding.

Robots.txt Generator is a freeware utility that makes the creation of robots.txt files a breeze.

A robots.txt file is a short text file that resides in your home directory. Before search engines spider your site, they look into this file to see which files/file types and/or directories they are not allowed to see. This freeware utility will assist you in the creation of robots.txt files.

As a little ‘extra’ it also includes a block to many unwanted spiders that only crawl your site in order to collect the email addresses stored on your pages. (SPAM-bots)

Fill in the fields replacing the default values with your own ones. Create your robots.txt file, save it on your desktop and upload it at the root of your site.Example:http://www.domain.com/robots.txt

Redirect Path is a free Google Chrome extension that helps you discover HTTP header and redirect errors, so that you can spend more time fixing the problems, rather than looking for them. This little plugin is most convenient for when you’re just looking into just a few pages.

This will show you a number of things going on behind-the-scenes with competitor websites. Server information, CMS systems, frameworks, analytics and tracking, javascript libraries, widgets, aggregation functionality, document information and encoding.

Google Trends is a public web facility of Google Inc., based on Google Search, that shows how often a particular search-term is entered relative to the total search-volume across various regions of the world, and in various languages.

Create custom code so that your reviews, events, organizations, and people are displayed the way you want on search pages. Once you’ve created your schema code, copy and paste to your website, or try the free WordPress plugin for an even easier implementation.